XBB.1.5 on its way to being predominant COVID-19 subvariant
Available in Spanish Since it was first identified in late October (in New York), Omicron subvariant XBB.1.5 has rapidly outcompeted other Omicron subvariants and is believed to now represent more than 70% of cases in the northeast United States. XBB.1.5 comprised an estimated 27.6% of COVID-19 cases in the United States during the first week […]